This Topeak chain tool combines workshop - level quality with great value. It's a 2 - piece cast CrMo tool with a hollow, removable handle. Slip it over a small Allen wrench for extra leverage. Comes with a chain hook to simplify chain repair. Compatible with all single - speed and most multi - speed chains, including 10 - speed hollow pin chains (not for 11 - speed chains).

Using this Topeak chain tool is easy. First, if you need more leverage, slide the hollow removable handle over a small Allen wrench. To repair the chain, use the included chain hook to hold the chain in place. This tool works well with all single - speed and most multi - speed chains, but remember it's not suitable for 11 - speed chains. When you're done using it, keep it in a dry place to prevent rust. Wipe it clean after each use to maintain its performance. With proper care, this chain tool will serve you for a long time.